Hi, I need some help on how to write some special functions that monetdb currently doesn&#39;t have.<br><br>E.g., I want to use the oralce funtion nvl(), which is described as follows:<br><a href="http://download.oracle.com/docs/cd/B19306_01/server.102/b14200/functions105.htm#i91798">http://download.oracle.com/docs/cd/B19306_01/server.102/b14200/functions105.htm#i91798</a><br>
<br>Then, how can I write a function that has the some ability as the oralce&#39;s? By the way, now I use MonetDB-Feb2010.<br>